131011330321 has 4 divisors (see below), whose sum is σ = 132011416944. Its totient is φ = 130011243700.

The previous prime is 131011330301. The next prime is 131011330337. The reversal of 131011330321 is 123033110131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131011330321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131011330301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 500043115 + ... + 500043376.

It is an arithmetic number, because the mean of its divisors is an integer number (33002854236).

Almost surely, 2^131011330321 is an apocalyptic number.

It is an amenable number.

131011330321 is a deficient number, since it is larger than the sum of its proper divisors (1000086623).

131011330321 is a wasteful number, since it uses less digits than its factorization.

131011330321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000086622.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 131011330321 its reverse (123033110131), we get a palindrome (254044440452).

The spelling of 131011330321 in words is "one hundred thirty-one billion, eleven million, three hundred thirty thousand, three hundred twenty-one".